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Freja C M Kirsebom · SciRah

Researcher profile · Semantic Scholar

Freja C M Kirsebom

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Freja C M Kirsebom — researcher profile on SciRah

h-index: 13
Works: 29
Citations: 3,918

Most-cited papers

Covid-19 Vaccine Effectiveness against the Omicron (B.1.1.529) Variant
N. Andrews, J. Stowe, Freja C M Kirsebom, S. Toffa +27 more
2022New England Journal of Medicine1,943 citations Open access
Semantic Scholar
Duration of Protection against Mild and Severe Disease by Covid-19 Vaccines
N. Andrews, Elise Tessier, J. Stowe, C. Gower +17 more
2022New England Journal of Medicine594 citations Open access
Semantic Scholar
Effectiveness of COVID-19 booster vaccines against COVID-19-related symptoms, hospitalization and death in England
N. Andrews, J. Stowe, Freja C M Kirsebom, S. Toffa +4 more
2022Nature Medicine362 citations Open access
Semantic Scholar
COVID-19 vaccine effectiveness against the omicron (BA.2) variant in England
Freja C M Kirsebom, N. Andrews, J. Stowe, S. Toffa +7 more
2022medRxiv254 citations Open access
Semantic Scholar
Effectiveness of COVID-19 vaccines against the Omicron (B.1.1.529) variant of concern
N. Andrews, J. Stowe, Freja C M Kirsebom, S. Toffa +23 more
2021medRxiv224 citations Open access
Semantic Scholar
Vaccine effectiveness and duration of protection of Comirnaty, Vaxzevria and Spikevax against mild and severe COVID-19 in the UK
N. Andrews, Elise Tessier, J. Stowe, C. Gower +8 more
2021medRxiv147 citations Open access
Semantic Scholar
Effectiveness of COVID-19 vaccines against Omicron and Delta hospitalisation, a test negative case-control study
J. Stowe, N. Andrews, Freja C M Kirsebom, M. Ramsay +1 more
2022Nature Communications141 citations Open access
Semantic Scholar
Effectiveness of BNT162b2 (Comirnaty, Pfizer-BioNTech) COVID-19 booster vaccine against covid-19 related symptoms in England: test negative case-control study
N. Andrews, J. Stowe, Freja C M Kirsebom, C. Gower +2 more
2021medRxiv55 citations Open access
Semantic Scholar
Monitoring the COVID-19 immunisation programme through a national immunisation Management system – England’s experience
Elise Tessier, M. Edelstein, Camille Tsang, Freja C M Kirsebom +7 more
2022Int. J. Medical Informatics34 citations Open access
Semantic Scholar
Interim 2024/25 influenza vaccine effectiveness: eight European studies, September 2024 to January 2025
Angela M. C. Rose, H. Lucaccioni, K. Marsh, Freja C M Kirsebom +199 more
2025Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin32 citations Open access
Semantic Scholar
Effectiveness of Autumn 2023 COVID-19 vaccination and residual protection of prior doses against hospitalisation in England, estimated using a test-negative case-control study.
Freja C M Kirsebom, J. Stowe, James A. Lopez Bernal, A. Allen +1 more
2024medRxiv31 citations Open access
Semantic Scholar
Effectiveness of BNT162b2 and ChAdOx1 against SARS-CoV-2 household transmission: a prospective cohort study in England
S. Clifford, P. Waight, J. Hackman, Stéphane Hué +8 more
2023Wellcome Open Research17 citations Open access
Semantic Scholar
The Impact of Vaccination and SARS-CoV-2 Variants on the Virological Response to SARS-CoV-2 Infections during the Alpha, Delta, and Omicron waves in England.
R. Lunt, C. Quinot, Freja C M Kirsebom, N. Andrews +13 more
2023Journal of Infection16 citations Open access
Semantic Scholar
Effectiveness of spring 2024 (XBB.1.5) and autumn 2024 (JN.1) COVID-19 vaccination against hospitalisation in England.
Nurin Iwani Binti Abdul Aziz, Freja C M Kirsebom, A. Allen, N. Andrews
2025Vaccine12 citations Open access
Semantic Scholar
COVID‐19 Vaccine Safety in Pregnancy, A Nested Case–Control Study in Births From April 2021 to March 2022, England
A. Mensah, J. Stowe, Jen Jardine, Freja C M Kirsebom +5 more
2023medRxiv11 citations Open access
Semantic Scholar
Effectiveness of the COVID-19 vaccines against severe disease with Omicron sub-lineages BA.4 and BA.5 in England
Freja C M Kirsebom, N. Andrews, J. Stowe, M. Ramsay +1 more
2022medRxiv10 citations Open access
Semantic Scholar
Adolescent vaccination with BNT162b2 (Comirnaty, Pfizer-BioNTech) vaccine and effectiveness of the first dose against COVID-19: national test-negative case-control study, England
Annabel A. Powell, Freja C M Kirsebom, J. Stowe, Kelsey McOwat +5 more
2021medRxiv9 citations Open access
Semantic Scholar
Effectiveness of COVID-19 Vaccines Against Hospitalization and Death With the SARS-CoV-2 Delta Variant in Solid Organ and Islet Transplant Recipients
S. Williams, H. Whitaker, L. Mumford, C. Callaghan +7 more
2022Transplantation7 citations Open access
Semantic Scholar
Severity of COVID-19 sub-lineages XBB/XBB 1.5/XBB1.16, EG.5.1. and JN.1. in England
C. Quinot, Freja C M Kirsebom, N. Andrews, J. Stowe +5 more
2024The Lancet Regional Health - Europe5 citations Open access
Semantic Scholar
Vaccine effectiveness against mild and severe covid-19 in pregnant individuals and their infants in England: test negative case-control study
Freja C M Kirsebom, N. Andrews, A. Mensah, J. Stowe +4 more
2024BMJ Medicine5 citations
Semantic Scholar
Effectiveness of BNT162b2 and ChAdOx-1 vaccines in residents of long-term care facilities in England using a time-varying proportional hazards model
K. Paranthaman, S. Subbarao, N. Andrews, Freja C M Kirsebom +4 more
2022Age and Ageing4 citations Open access
Semantic Scholar
Effectiveness of BNT162b2 and ChAdOx1 against SARS-CoV-2 household transmission - a prospective cohort study in England
S. Clifford, P. Waight, J. Hackman, Stéphane Hué +8 more
2021medRxiv4 citations Open access
Semantic Scholar
How do large scale population studies inform vaccine evaluations in England?
Freja C M Kirsebom, V. Hall, J. Stowe
2025Clinical and Experimental Immunology3 citations
Semantic Scholar
Association between COVID-19 Vaccination and SARS-CoV-2 Infection among Household Contacts of Infected Individuals: A Prospective Household Study in England
K. Muhsen, P. Waight, Freja C M Kirsebom, N. Andrews +8 more
2024Vaccines2 citations Open access
Semantic Scholar
The impact of Covid-19 vaccine spring boosters on Covid-19 hospital admissions in England 2022/23.
N. Andrews, I. Osuntoki, J. Stowe, Freja C M Kirsebom +2 more
2024Journal of Infection2 citations Open access
Semantic Scholar
Long-term duration of protection of ancestral-strain monovalent vaccines and effectiveness of the bivalent BA.1 boosters against COVID-19 hospitalisation during a period of BA.5, BQ.1, CH.1.1. and XBB.1.5 circulation in England
Freja C M Kirsebom, N. Andrews, J. Stowe, M. Ramsay +1 more
2023medRxiv2 citations Open access
Semantic Scholar
Effectiveness of BNT162b2 COVID-19 booster vaccine against covid-19 related symptoms and hospitalization in England
N. Andrews, J. Stowe, Freja C M Kirsebom, S. Toffa +4 more
2022Nature Medicine1 citations Open access
Semantic Scholar
Serological outcomes of SARS-CoV-2 infection by vaccination status and variant in England
C. Quinot, R. Lunt, Freja C M Kirsebom, N. Andrews +15 more
2023medRxiv0 citations Open access
Semantic Scholar
Monitoring the COVID-19 immunisation programme through a National Immunisation Management System- Englands experience
Elise Tessier, J. Stowe, Camille Tsang, Yuma Rai +17 more
2021medRxiv0 citations Open access
Semantic Scholar

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